Generation of multiply charged optical vortices and spatiotemporal helical beams using cascaded four-wave mixing

A. V. Gorbach; D. V. Skryabin

doi:10.1109/CLEOE-IQEC.2007.4386865

Generation of multiply charged optical vortices and spatiotemporal helical beams using cascaded four-wave mixing

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

Abstract

In this work, we suggest a method for simultaneous manipulation by the frequency and angular harmonics of light opening new opportunities for spatio-temporal shaping of optical waves. Amongst others, we demonstrate the effect of cascaded vortex generation, describe the counter-intuitive process of strong spatial compression induced by self-defocusing nonlinearity and generation of spatio-temporal helical beams in the soliton and non-soliton regimes. Our approach is based on the observation that the four-wave mixing (FWM) process in nonlinear materials imposes a selection rules not only on the frequency spacing between the interacting waves but also on their orbital angular momentum also called topological charge. The strong coupling between the temporal and spatial degrees of freedom is induced in such a process.

Original language	English
Title of host publication	2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference
Publisher	IEEE
Number of pages	1
ISBN (Print)	1557528470, 9781557528476
DOIs	https://doi.org/10.1109/CLEOE-IQEC.2007.4386865
Publication status	Published - 21 Nov 2007
Event	Nonlinear Photonics, NP 2007 - Quebec City, Canada Duration: 2 Sept 2007 → 2 Sept 2007

Conference

Conference	Nonlinear Photonics, NP 2007
Country/Territory	Canada
City	Quebec City
Period	2/09/07 → 2/09/07

ASJC Scopus subject areas

Instrumentation
Atomic and Molecular Physics, and Optics

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10.1109/CLEOE-IQEC.2007.4386865

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Generation of multiply charged optical vortices and spatiotemporal helical beams using cascaded four-wave mixing. / Gorbach, A. V.; Skryabin, D. V.
2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference. IEEE, 2007.

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

Gorbach, AV & Skryabin, DV 2007, Generation of multiply charged optical vortices and spatiotemporal helical beams using cascaded four-wave mixing. in 2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference. IEEE, Nonlinear Photonics, NP 2007, Quebec City, Canada, 2/09/07. https://doi.org/10.1109/CLEOE-IQEC.2007.4386865

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Generation of multiply charged optical vortices and spatiotemporal helical beams using cascaded four-wave mixing

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